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作 者:杨艺[1,2,3] 高阳 罗开成 王科平 费树岷[4] YANG Yi;GAO Yang;LUO Kaicheng;WANG Keping;FEI Shumin(College of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China;Zhengzhou Coal Mining Machinery Group Company Limited,Zhengzhou 450013,China;Zhengzhou Coal Machine Hydraulic Control Group Company Limited,Zhengzhou 450013,China;Colledge of Automation,Southeast University,Nanjing 210096,China)
机构地区:[1]河南理工大学电气工程与自动化学院,河南焦作454000 [2]郑州煤矿机械集团股份有限公司,河南郑州450013 [3]郑州煤机液压电控有限公司,河南郑州450013 [4]东南大学自动化学院,江苏南京210096
出 处:《煤矿安全》2022年第1期167-173,共7页Safety in Coal Mines
基 金:国家重点研发计划资助项目(2018YFC0604502);河南省煤矿智能开采技术创新中心支撑资助项目(2021YD01);河南省科技攻关资助项目(212102210390)。
摘 要:以Linux环境下离散元开发环境YADE为基础,开发了综放工作面连续进刀放煤三维仿真系统;系统以煤矿真实地质环境设置放煤参数,有效模拟了放煤过程中尾梁摆动、液压支架推移动作,以及尾梁顶部的煤矸混合动态变化过程;在此基础上,开展了单轮放煤、双轮放煤等不同工艺的进刀放煤对比试验。结果表明:进刀放煤三维模型能够真实地模拟顶煤放出过程,为从三维角度研究综放开采顶煤放出规律提供了新的方法;在综放工作面连续进刀放煤条件下,双轮分段间隔放煤效果最好,其平均顶煤采出率为86.64%、含矸率为4.06%。Based on the discrete element development environment YADE under Linux environment,this paper develops a threedimensional simulation system for continuous feeding and coal caving in fully mechanized caving face.The system which sets the coal caving parameters based on the real geological environment of the coal mine can effectively simulate the swing of the tail beam,the pushing action of the hydraulic support,and the mixed dynamic change process of the coal and gangue on the top of the tail beam during the coal caving process.On this basis,the comparison experiments of single-wheel coal caving and double round coal caving were carried out.The experimental results show that the three-dimensional model of feeding and coal caving can truly simulate the top coal caving process.It also provides a new method for studying the top coal caving law of fully mechanized caving mining from three-dimensional perspective;under the condition of continuous feeding and coal caving in fully mechanized caving face,the effect of double-wheel sublevel interval caving is the best,the average top coal recovery rate is86.64%and the gangue rate of 4.06%.
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